Home / 45,979.23-63,457.20-28,070.40

Finding the Fourth Proportional to 45,979.23, 63,457.20 and 28,070.40

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Solution

The fourth proportional to 45,979.23, 63,457.20 and 28,070.40 is: 38,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,979.23 : 63,457.20 = 28,070.40 : x
  2. Step 2: Convert to fraction form
    45,979.23/63,457.20 = 28,070.40/x
  3. Step 3: Cross multiply
    45,979.23x = 63,457.20 × 28,070.40
  4. Step 4: Simplify right side
    45,979.23x = 1,781,268,986.88
  5. Step 5: Solve for x
    x = 1,781,268,986.88/45,979.23
  6. Step 6: Final answer
    x = 38,740.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.